USB power cable for charging. The battery has a compact size of 5x5x4 cm and is black in color. It is specifically designed for XBOX ONE controllers, providing a convenient and long-term power solution. With a capacity of 2400mAh, this rechargeable battery ensures extended gaming sessions without the need for constant battery replacements. Simply connect the USB power cable to the battery and plug it into a power source for charging. Say goodbye to disposable batteries and enjoy uninterrupted gaming with this XBOX ONE rechargeable battery.